<template>
  <div>
    <h1>{{ msg }}</h1>
    <button @click="btn">翻转</button>
  </div>
</template>

<script>
export default {
  data () {
    return {
      msg :"HELLO WORLD",
    }
  },

  created () {

  },

  methods: {
    btn(){
      this.msg = this.msg.split("").reverse().join("")
    }
  }
}
</script>

<style scoped lang='less'>

</style>
